'Sorry! Only one entry is allowed' message displayed for multiple submissions

Hello, for some reason, when a person tries to submit our form with the same email or phone number, an error message pops up that says "Sorry! Only one entry is allowed." How can I change the settings so that multiple entries are allowed?

Generally, this message is displayed when the Unique submission/question option is enabled for on your form.

Please check the form settings if you have enabled 'Unique submission' or 'Unique Question' option for the form.

Please get back to us if you need any further assistance. We will be happy to assist you further. 

Generally, this message is displayed when the Unique submission/question option is enabled for on your form.

Please check the form settings if you have enabled 'Unique submission' or 'Unique Question' option for the form.

Please get back to us if you need any further assistance. We will be happy to assist you further.